2011 hot selling chemicals rotary dryer widely used

chemicals rotary dryer
1,this machine is widly used for industry,farm and building
2,can dry to less than 12% water content
chemicals rotary dryer

Rotary Dryer Application:
The Rotary Drier used for drying material with high humidity.it is widely used in metallurgical industry, building material, food, light industry,
chemical, coal, and medical mining industry.

Rotary Sawdust Dryer Structure
Rotary drieris handling by bringing it into direct contact with a heated gas. The dryer is made up of a large, rotating cylindrical tube,The dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer under .
1. Main tube body, front roller circle, rear roller circle, gear, side plate of rolls,
small gear, outlet part, reduce box, motor , h eated air duct, inlet month
and furnace body and other structure.
2. The fuel can be coal, fire, gas, and electricity and other fuel.
3. We can design the gas generator furnace, firebox, and euipped elevator,
belt conveyor , constant feeding machine, dust collector cyclone. Draft fan and so on

Working principle of the Rotary Dryer
Material to be dried enters the drier, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot gas stream as it falls. This gas stream can either be moving toward the discharge end from the feed end (known as co-current flow), or toward the feed end from the discharge end (known as counter-current flow). The gas stream can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a dire ct heated dryer. Alternatively, the gas stream may consist of air or another (sometimes inert) gas that is preheated. When the gas stream is preheated by some means where burner combustion gases do not enter the dryer, the dryer known as an indirect-heated type. Often, indirect heated dryers are used when product contamination is a concern.